<template>
    <div class="app-container">

        <el-form :inline="true" v-model="teacherQuery" class="demo-form-inline">
            <el-form-item>
                <el-input placeholder="讲师名" v-model="teacherQuery.name"></el-input>
            </el-form-item>

            <el-form-item>
                <el-select placeholder="讲师头衔" v-model="teacherQuery.level">
                    <el-option label="高级讲师" :value="1"></el-option>
                    <el-option label="首席讲师" :value="2"></el-option>
                </el-select>
            </el-form-item>

            <el-form-item label="添加时间" v-model="teacherQuery.begin">
                <el-date-picker type="datetime" v-model="teacherQuery.begin" placeholder="选择开始时间" value-format="yyy-MM-dd HH:mm:ss" default-time="00:00:00"></el-date-picker>
            </el-form-item>
            <el-form-item>
                <el-date-picker type="datetime" v-model="teacherQuery.end" placeholder="选择结束时间" value-format="yyy-MM-dd HH:mm:ss" default-time="00:00:00"></el-date-picker>
            </el-form-item>

            <el-button type="primary" icon="el-icon-search" @click="getList()">查询</el-button>
            <el-button type="default" icon="el-icon-delete" @click="resetData()">清空</el-button>
        </el-form>


        <el-table :data="list" border fit highlight-current-row>

            <el-table-column align="center" label="序号" width="70">
                <template slot-scope="scope">
                    {{ (page-1) * limit + scope.$index + 1}}
                </template>
            </el-table-column>

            <el-table-column  prop="name" label="名称" width="80"></el-table-column>

            <el-table-column label="头衔" width="80">
                <template slot-scope="scope">
                    {{ scope.row.level === 1 ? '高级讲师' : '首席讲师'}}
                </template>
            </el-table-column>

            <el-table-column prop="intro" label="资历"></el-table-column>

            <el-table-column prop="gmtCreate" label="添加事件" width="160"></el-table-column>

            <el-table-column prop="sort" label="排序" width="60"></el-table-column>

            <el-table-column label="操作" width="200" align="center">
                <template slot-scope="scope">
                    <router-link :to="'/teacher/edit/' + scope.row.id" >
                        <el-button type="primary" size="mini" icon="el-icon-edit">修改</el-button>
                    </router-link>
                    <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button>
                </template> 
            </el-table-column>
        </el-table>

        <!-- 分页 -->
        <el-pagination :current-page="page" :page-size="limit" style="padding: 30px 0; text-align:center;" background layout="total, prev, pager, next, jumper" :total="total" @current-change="getList"></el-pagination>
    </div>
</template>

<script>
// 引入调用 teacher.js 文件
import teacher from '@/api/edu/teacher'

export default {
    // 写核心代码位置
    data() {
        // 定义变量和初始值
        return {
            list : null,        // 查询之后接口返回集合
            page : 1,           // 当前页
            limit : 10,        // 每页记录数
            total : 0,          // 总记录数
            teacherQuery : {}    // 条件封装对象
        }
    },
    created(){
        // 在页面渲染之前执行，一般调用 methods 定义的方法
        // 调用
        this.getList()

    },
    methods : {
        // 创建具体的方法，调用 teacher.js 定义的方法
        // 讲师列表的方法
        getList(page = 1){
            this.page = page
            console.log(this.teacherQuery)
            teacher.getTeacherListPage(this.page, this.limit,
                this.teacherQuery
            )
            .then(response => {   // 请求成功
                // respose 接口返回的数据
                this.list = response.data.items
                this.total = response.data.total
            })
            .catch(error => {     // 请求失败
                console.log(error)
            })
        },
        // 清空条件查询的条件
        resetData(){
            this.teacherQuery = {}
            this.getList()
        },
        // 删除讲师方法
        removeDataById(id){
            this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).then(() => {
                teacher.deleteTeacherId(id)
                this.$message({
                    type: 'success',
                    message: '删除成功!'
                });
                this.getList()
            }).catch(() => {
                this.$message({
                    type: 'info',
                    message: '已取消删除'
                });          
            });
        }
    }
}
</script>